5ZRV

Structure of human mitochondrial trifunctional protein, octamer


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 7.70 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Cryo-EM structure of human mitochondrial trifunctional protein

Liang, K.Li, N.Wang, X.Dai, J.Liu, P.Wang, C.Chen, X.W.Gao, N.Xiao, J.

(2018) Proc Natl Acad Sci U S A 115: 7039-7044

  • DOI: 10.1073/pnas.1801252115
  • Primary Citation of Related Structures:  
    5ZQZ, 5ZRV

  • PubMed Abstract: 
  • The mitochondrial trifunctional protein (TFP) catalyzes three reactions in the fatty acid β-oxidation process. Mutations in the two TFP subunits cause mitochondrial trifunctional protein deficiency and acute fatty liver of pregnancy that can lead to death ...

    The mitochondrial trifunctional protein (TFP) catalyzes three reactions in the fatty acid β-oxidation process. Mutations in the two TFP subunits cause mitochondrial trifunctional protein deficiency and acute fatty liver of pregnancy that can lead to death. Here we report a 4.2-Å cryo-electron microscopy α2β2 tetrameric structure of the human TFP. The tetramer has a V-shaped architecture that displays a distinct assembly compared with the bacterial TFPs. A concave surface of the TFP tetramer interacts with the detergent molecules in the structure, suggesting that this region is involved in associating with the membrane. Deletion of a helical hairpin in TFPβ decreases its binding to the liposomes in vitro and reduces its membrane targeting in cells. Our results provide the structural basis for TFP function and have important implications for fatty acid oxidation related diseases.


    Organizational Affiliation

    School of Life Sciences, Peking University, 100871 Beijing, China.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Trifunctional enzyme subunit alpha, mitochondrialA, C, E, G763Homo sapiensMutation(s): 0 
Gene Names: HADHAHADH
EC: 4.2.1.17 (PDB Primary Data), 1.1.1.211 (PDB Primary Data), 2.3.1 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for P40939 (Homo sapiens)
Explore P40939 
Go to UniProtKB:  P40939
PHAROS:  P40939
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Trifunctional enzyme subunit beta, mitochondrialB, D, F, H474Homo sapiensMutation(s): 0 
Gene Names: HADHBMSTP029
EC: 2.3.1.16 (PDB Primary Data), 2.3.1.155 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for P55084 (Homo sapiens)
Explore P55084 
Go to UniProtKB:  P55084
PHAROS:  P55084
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 7.70 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
China--

Revision History  (Full details and data files)

  • Version 1.0: 2018-06-20
    Type: Initial release
  • Version 1.1: 2018-07-04
    Changes: Data collection, Database references
  • Version 1.2: 2018-07-18
    Changes: Data collection, Database references